02-Sex Research
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Transcript 02-Sex Research
Sex Research
How do we learn new information
about sex?
Research Methods
Case studies
Surveys
Direct observation
Experimental studies
Case Studies
Male lost penis at circumcision - Joan /
John
Transsexuals
Incest victims (survivors)
Sex offenders
Surveys
Source of most of our scientific information about
sexuality
Alfred Kinsey
First extensive survey of American sexual behavior
Kinsey institute
http://www.indiana.edu/~kinsey/
National health & Social Life Survey
Single best survey ever conducted of adult sexual behavior
Surveys of men exposed to
violent pornography
indicated:
Reduced sensitivity to rape victims
Increased tolerance of sexually aggressive
behavior
A grater acceptance of the myth that
women want to be raped
Survey samples
Population
Random sample
Self selected “sample” = not
representative
E.g. Radio talk show listeners
Direct observation studies
Masters & Johnson
http://www.mastersandjohnson.com/
Studies the sexual response cycle & physiological
responses
Equipment
Penile strain gauge(Penile Plethysmograph)
Vaginal photoplethysmograph
Measures increased vaginal blood volume
Color changes
Experimental studies
E.g. Movies in sex therapy
Can make cause and effect conclusions
Variables
Example
Rapists & nonrapists listen to taped
descriptions of rape and consensual sex
Do these recordings affect one more than the
other?
How do we measure the effect of the
recordings?
What is the independent variable?
What is the dependent variable?
Variables
Independent variable
The one we can control
Taped descriptions
Dependent variables
Penile tumescence
Penile strain gauge
Another example
High school condom distribution & effect
on pregnancies
Freely available VS from nurse
Independent variable?
Dependent variable?